Relation of limiting factors of guppies with temperature, and plants with pH, and salinity. Genesis James Caparida Introduction It is common knowledge that there are limits to everything. Neither animal nor plant can exceed the limit of their natural structure. It is an indicator that is used whether the environment is habitable or not. There are sometimes that limitations are influenced by other factors in an organism’s environment (Hutchinson, 1976; Blackman 1905). Materials and Methodology The first experiment is the limiting factor guppies or rainbow fishes with temperature. Three beakers, one hot, one cold, one neutral, are where the fishes were placed. They were observed every five minutes for thirty minutes. The other experiment is the pH and salinity tolerance of our pechay seeds. There are five different levels of pH and salinity, each have at least five petri dishes with cotton soaked in …show more content…
of deaths 0 0 0 0 0 0 Cold is the absence of heat. Just like some animals, in order to preserve heat, less movement is done in order to keep the remaining heat inside the body. pH and Salinity on pechay. Certain change of the soil affects the growth of the plant. This is shown on the different lengths of seedlings on different levels of pH and salinity. The growth somehow reflects on the effects of different levels of the soil to the plants themselves (Foy 1992). Table 4, pH levels The regular pH of water is commonly at 7. Looking at the control group, the water assumptively has a pH level of 7. If pH level 8 is compared, the average shoot length is close to be the same with the average record of the control group, but not with the root length. pH level 5 has the highest average length of both root and shoot compared to the other groups (Foy 1984; Chapin et al. 1987). Table 5,
Abstract: The main focus of this lab is on animal behaviors in terrestial isopods, also known as pillbugs. There are many purposes to this lab experiment. First, these pillbugs are put into four different types of enviroments, also known as chambers, light v. dark, hot vs. cold, moisture vs. dry, and lastly shelter vs. open. In these different chambers, there are 10 pillbugs, 5 placed into each individual chamber and then observed for up to 5 – 10 minutes. In this lab we observed that pillbugs prefer light areas, hot temperatures, moist environments, and lastly sheltered spaces.
Students started off with a population of ten Skittlefish (skittles) on an orange reef (construction paper). The skittles had varying colors, and the adaptive trait being examined was the ability to blend in with the reef so the predators would not find them. The hypothesis that was thought up was that individuals’ survival was based on their location and coloring. The first year began with two of each color, and 5 Skittlefish were eaten that “year”. The ones eaten were two green, two purple, and one red.
Physiology of Exercise of Competitive Cross-Country Skiing Name Institution Physiology of exercise of Competitive cross-country skiing Recovery mechanism Competitive cross-country skiing is a strenuous endurance sport in which efficiency and energy delivery are deemed very important to achieve a high performance. Recently, shorter sprint competitions have been adopted; skiers are subjected to time-trial qualification race with three knockout heats. The heats take approximately 3-4 minutes and 20 minutes between the heats.
The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’.
First, place the toy in front the dog and then press start on the stopwatch. While they are trying to open the toy, take pictures. Then all you have to do is repeat the steps for the other dogs. Overall in my experiment was testing if different breeds can open the the Paw flapper (the toy). In the end the fastest dog was the Bulldog and the slowest was the Yorkie mixed poodle with poodle.
+ ATP Although plants and animals have different methods of obtaining glucose, the cell respiration process occurs in both types of organisms. Many external factors in the environment may affect the organism's’ rate of respiration such as the temperature of the surrounding,
1. This experiment was performed using cells from 3 different species, Vicia faba (broad bean), Allium cepa (onion), and Coregonus clupeiformis (whitefish), which obviously have variability between them. Onions are bulb plants, meaning they have a ball of stored nutrients underneath the soil out of which the roots protrude, where the broad bean does not have a bulb, having most of its mass above the soil. The whitefish is of course an animal, entirely different from the plants, including in how the cell cycle is performed. A cleavage furrow forms instead of a cell plate to perform cytokinesis, and centrosomes are present in its mitotic cycle, unlike in plants.
The purpose of this lab was to change pennies from copper to silver to gold, like alchemists have attempted to do in history. Through the data and observations gathered throughout this experiment, it can be concluded that the pennies were not changed into a different element. For example, the density of the penny from 2005; which was the penny that was experimented on to see whether or not it could turn into silver; was 4.62 g/cm3 before the experiment and 4.89 g/cm3 by the end of the experiment. If this copper penny really would have turned into silver, then the density of the penny would be 10.49 g/cm3; which is the density of silver; by the end of the experiment. The penny may have turned silver in color, but this was only because it was plated in the zinc that was added to the beaker of water in the experiment.
However, after investigation through gel electrophoresis, the three kinds of plants were not identical. This relates to the
In our experiment, we examined the behavior of isopods by conducting the experiment based on our hypothesis: “If ten isopods are put into the test chamber, 5 in sand and 5 in soil, which environment will the pillbug prefer.” We hypothesized that the isopods would favor the soil more than the sand because pillbugs are typically found in soil and not in sand. Pillbugs are favored in soil because the natural role of a pillbug is to eat dead and decaying things but, in sand there are no nutrients available for pillbugs. Pill bugs are mostly found in moist environments, due to having gills, gills only function when they are wet so pill bugs will inhabit places in which air holds a lot of water
Based on the data and the recorded observations, my hypothesis is correct. When a solution is hypotonic, this causes the cell to swell, because there are more water molecules on the inside of the cell. If positive feedback continues, the cell will eventually burst. When a solution is hypertonic, this causes the cell to shrink, because there are more water molecules on the outside of the cell. Over time, the cell will start to function poorly (“Difference between Hypertonic, Hypotonic, Isotonic Solutions”).
Abstract: The purpose of this experiment was to determine whether the amount of topsoil would influence the growth of radish plants. It was hypothesized that if the amount of topsoil increased by 50% would increase because topsoil contains the essential nutrients which are required for proper plant growth. The principle findings indicated that a medium amount of topsoil is ideal for plant growth as the radish plant potted in 50 ml of topsoil experienced the most growth in comparison to the radish plants potted either in 25 ml or 200 ml of topsoil. Introduction: A healthy layer of topsoil comprises of a mixture of clay, sand, silt, and humus that supply the plants with vital nutrients, such as nitrogen, phosphorus, potassium and other necessary
Leaves containing water-soluble elements were boiled and turned from the solid phase into the liquid phase, boiling water. The calcium carbonate was added to form insoluble calcium salts with the tannins and gallic acid so that after vacuum filtration they would be removed. The sodium chloride salt was added after the vacuum filtration in order to raise the polarity of the water, making less amount of molecules soluble in it. This is because the salt takes the part of the space in water and many compounds become insoluble and are pushed out by the salt.
Introduction: In this task I will be researching the effect that acid rain has on the rate of plant growth. Acid rain is any type of precipitation with a high pH, with high levels of nitric acids. The reason why I had chosen this topic was because acid rain seems to have a great effect on the effect of plant growth, and plants play a very important role in our ecosystem. Acid rain is a major problem in our environment when we are not able to neutralize the acidity.
Introduction Plants are a major necessity in the balance of nature, people’s lives, and our terrain. We may not realize it, but plants are the ultimate source of food for almost 95% of the world population so says the National Group of Food. It’s a fact that over 7,000 species of plants are being consumed today. Plants are one of the reasons that we get clean water; as they help regulate the water cycle.